222984 has 48 divisors (see below), whose sum is σ = 639600. Its totient is φ = 69984.
The previous prime is 222979. The next prime is 222991. The reversal of 222984 is 489222.
It is a nude number because it is divisible by every one of its digits.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1287 + ... + 1449.
It is an arithmetic number, because the mean of its divisors is an integer number (13325).
2222984 is an apocalyptic number.
222984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 222984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319800).
222984 is an abundant number, since it is smaller than the sum of its proper divisors (416616).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
222984 is a wasteful number, since it uses less digits than its factorization.
222984 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 194 (or 187 counting only the distinct ones).
The product of its digits is 2304, while the sum is 27.
The square root of 222984 is about 472.2118168788. The cubic root of 222984 is about 60.6398195960.
The spelling of 222984 in words is "two hundred twenty-two thousand, nine hundred eighty-four".
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